"Oh my God, this is exciting, and this is going to be a bit of a nightmare for the next few weeks," he said of his reaction to the baby news in a pre-taped interview with Ellen DeGeneres set to air this week. "It was kind of uncomfortable. You know, the situation," Cowell, 53, admitted.

As for his relationship with the New York socialite, 36 -- already a mom to 7-year-old Adam -- Cowell says the way she has been portrayed in the media is absolute rubbish. "There was a lot of stuff said about her, that she trapped me and that she's a gold digger. Absolute nonsense," he said. "She's a great girl."